Lubricator.



H; A. BUG. Lus'mcuoa.

APPLICATION FILED SEPT- I6, 1913.

3 SHEETS-SHEET I.

Patented May 11, 1915.

H A. DUC

LUBRICATOR. APPLICATION HLED SEPT- 16, I913? I Patented May 11, 1915.

3 SHEETS-SHEET 3- quantity of lubricant displaced HENRY A. BUG, orCHARLESTON, scorn cAnoLI'N Q LUBRICA'iOR.

Application filed September 16, 1913.

To all whom it may concern:

Be it known that I, HENRY A. DUO, citizen of the United States, residingat Charleston, in the county of Charleston and State of South Carolina,have invented cerand useful Improvements "in tain new Lubricators, ofwhich the .following is a specification.

This invention relates broadly to lubrieating systems and has particularreference to those of the force feed type.

Primarily this invention provides a force feed lubricating system inwhich the lubricant is circulated from themain reservoir through the oilductsand glands by awater of condensation displacement in Jthe'lubricantreservoir;

As one of its principal objects this inprovide a system of the.

vention aims to class described 1n which the lubricant is mixed withsteam prior to its entrance, into the engine or system to be lubricated,producing an emulsion.

An object of equal importance with the oregoing is to provide meanswhereby the proportion of steam and lubricant in the emulsion may bequickly varied to make the emulsion heavy or light as conditions maydemand.

A yet further object resides in the provision of a device forcontrolling the from the reservoir per unit of time.

A still further object resides in the provision of a mixing chamber intowhich the lubricant and steam are directed at an angle toone another sothat they will thoroughly mix, producing a temporary emulsion.

A yet further object is to provide a novel form of control for the valvewhich is introduced in the lubricant inlet of the mixing chamber.

A still further object resides in the provision of a steam jacketedlubricant reservoir whereby the temperature'of the lubricant is raisedto the desired point prior to its entrance into'the mixing chamber inwhich it contacts with the steam.

Another object is to construct the device in such manner that the steamafter passing through the jacket surrounding the lubricant reservoir maybe directed into the mixing chamber to commingle with the lubricantwhich enters the mixing chamber by another course.

Specification of Letters Patent.

exterior perspective view of shown in Fig. 1; Fig. 3

Patented May 11, 1915.

Serial No. 790,049.

An object coexisting inimportance with all ofthe foregoing is toconstruct the d evice of this invention with such regard to proportion,number and arrangement of parts that it'may be cheaply-manufactured,

will be :durable and eiiicient in its action, w ll be equipped with asfew-adjustments as are consistent with the desideration of adequatecontrol over the quality of the prepared emulsion and'may be readily applied to any standard form of steam engine or machine adapted to forcefeed lubrication. g j

v The above and additionalobjects are accomplished by such means as-areillustrated in the accompanying drawings, described in thefollowingspecification, and then more other modification, the mixing chamber bemgshown in section to more'clearly illustrate the interior arrangement, ofparts; Fig. 5 is a section on the line 55 of Fig. 4.. 1 In its preferredform this invention consists essentially in a lubricant reservoir orcontainer which is partially surrounded by a steam jacket andcommunicates with a mixing chamber into which the steam is directedafter passing through the steam jacket. I

The lubricant reservoir of the preferred form as best illustrated indetail in Fig. 2, I515 comprises a cylindrical casing 10 formed of castbrass or any other desired and suitable metal. The upper portion of thecasing 10 is surrounded by a steam jacket 11 into which'the steam entersby a pipe indicated at 12. This pipe 1:2 is tapped into the wall of thesteam jacket 11 at the upper end thereof, there being an additional feedpipe l3 tapped into the steam jacket at the lower portion thereof. Thesepipes 12 and 13 are both screw threaded into the steam jacket isterminally screw threaded to receive a lock nut 15 by which'it isconnected to a coupling pipe 16. A branch pipe 17 is cast with the lowerterminal of the pipe 13 being closed at one end by a wall 18 and screwthreaded at the other end as at 19 so that it may be connected to thelubricant casing 10 at the lower portion thereof. The under part of thepipe 17 is provided with a threaded bore adapted to receive a .valvesupporting body 20 which in the preferred embodiment consists of ametallic plug formed with an annular shoulder or flange 21 adapted tobear against the pipe 17. The member 20 is formed with a longitudinallyextending threaded hole which receives a threaded valve stem 22 in theinner end of which is carried a valve. head 23 preterably of conicalshape and adapted to seat in a valve seat 24: formed at the juncture ofthe pipes 13 and 17. A packing gland 25 sui= rounds the valve stem 22and is held in position by a threaded bushing 26 as will be readilyobserved upon reference to Fig. 2.

A wheel or similar device is secured to the outer terminal of the valvestem" 22 as indicated at 27 for an obvious purpose.

As previously set forth the steam enters the steam jacket 11 through thepipe 12. It will be observed that inasmuch as this steam pipe 12 entersthe water jacket at its upper portion all water of condensation willeollect in the lower part of the steam jacket and will pass through thepipes 13 and 17 into the casing 10 at the lower portion thereof.Inasmuch as this water of condensation will be under pressure of thesteam head in the pipe 12 it is apparent that the lubricant will beforced toward the upper end of the casing 10. In this connection it isto be noted that the volume of water of condensation entering the casing10 and consequently the pressure bearing on the lubricant and tending toforce it toward the upper end of the casinglO, may be con trolled bymanipulation of the valve 23.

The lubricant passes from the casing 10 through a lead pipe 28 into avalve casing 29 from which it exits through a nozzle 30 into the mixingchamber indicated at 37. The pipe 28 in the preferred embodiment isLehapcd and is externally ithreaded at both ends, the horizontal portionof the pipe being formed in two sections which are held in assembledposition by a lock nut 32. The horizontal portion of the pipe 28 isthreaded into the valve casing 29 as indicated at 33, while the lowerterminal of the vertical portion of the pipe is threaded into the upperclosure wall 34: of the casing 10 as indicated at 35. This verticalportion of the pipe 28 is also formed in two sections in the preferredembodiment, these two sections being held in assembled relation by alock nut i11- dicated at 36.

The valve casing 29 is substantially cylindrical in shape and is screwthreaded into the top of the cylindrical casing or barrel 87 which inthe preferred form constitutes the mixing chamber. The upper end of thisvalve casing 29 is externally screw threaded and is further formed witha centrally disposed internally screw threaded opening in which a plug38 is mounted. An annular shoulder 39 is formed on the plug 38 for anobvious purpose. A valve 4:0 extends through the valve casing 29 andupwardly through the plug 38, its upper terminal indicated at all beingpassed through the top plate l2 of: a cylindrical housing 43 the lowerclosure'plate 4% of which is formed with a screw threaded opening sothatit may be maintained in threaded engagementwith the upper terminal. ofthe valve casing 29. A packing gland 45 surrounds the valve. In theupper closure member -it2 of the member 43 is formed a centrallydisposed screw threaded opening which receives the threaded boss d7formed on a preferably hexagonal face plate 18 on which the head of acam lever 49 operates as will be hereinafter more fully described. Alock nut 50 is mounted on the boss 17 and is manipulated inan obviousmanner to space the face plate 48 the desired distance from the closure42. The face plate 18 and boss 47 are provided with a verticallyextending bore through which the valve stem &0 cperates. The upperterminal of this valve stem 40 indicated at 41 is bifurcated andreceives between the arms thus produced the cam head 51 of the lever 49.The lever -49 is mounted on a pivot pin 52. The member 51 is arranged ina vertical planeand as indicated is formed with a cam edge which isadapted to engage the face plate 48. It will be apparent upon referenceto Fig. 2 particularly that by manipulating the lever 49 the valve stem40 may be lowered and raised toward and away from its seat.

As a means for holding the lever arm in adjusted position there has beenprovided a bracket 53 which is bolted or otherwise secured as at 51 tothe closure 42 and is bent at its upper terminal to produce an arcuatearm 55. This arm 55 is formed with an arcuate slot 56 in which a pintle57 carried 40 whereby the volume of lubricant flowing to the mixingchamber 81 is controlled,

it is to be noted that by moving the face terpolate at thispoi'nt abrief portion upper terminal conical bore formed in the Wall of theentersthe mixing chamber plate 48 toward and away from the closure :42the operator may readily vary thepoint at which the cam 51 will engagethe face plate. This feature forms an additional .5 means of controllingthe adjustment of the valve-40 as will be obvious upon reference toFig.- 2. I

- Inconnection with the; preferred form of valve operating means-it maybe Well to indescription of a modified fqrm lof valve control whichmaybe employed-iii this invention. This modification is illustrated inFig. 3 and con sists in forming the face plate 48 with :an

15 annular cam faced recess which is concentrically-disposed andreceives acam faced projection '59 formed, on a wing nut 60. hiswing nutisformed with a squared centralwpening Whichlreceives the squared 61 0fthe valve stem upon'rotati'on raises or lowersthe valve. A lock nut 62is applied to the extreme upper terminal of the valve in the well knownmanner. Resuming now the description of the preferred form, it has beenfound expedient in practice'to dispose a helical springfiii around theportion of the valve 40 which is comprehended within. the valve casing.The of the spring 63 bearsagainst the plug 38,. while the lower terminalis held. in position by a collar (34 carried on-the valve. The'lowerterminal of the valve 40 is conical as indicated at 65 and seats in a ofthe valve casing. A duct 67 communicate's with the valve and terminatesat its lower end interim-1y" of the mixing chamber 31. A spray nozzle 68conducts the steam 40 from the. jacket 11 intothe mixing chamber,

being preferably reduced and screw thread- "ed at itsrear terminal as at69 for connection to the steam luinal of the member 68 which isprojected 45 into the'chamber 31 1S tapered to producea screw-threadedat the junction of the conical portion with the main body'portion as at70 for the obvious purpose of threading it into casing 37. This nozzlepreferably consists'in acorecasting formed of brass or any othersuitable material, the core being-"gradually reduced toward the outletso that the steam will be compressed as it and will pass therethroughwith increased velocity. It will be apparent upon reference to Fig. 2particularly that as the lubricant dropsfrom the duct 67 it will fall atrightangles to the path of movement of the steam and Will be atomizedand mixed therewith with the con sequent production of a lubricatingemulsion. In this connection it is to be noted that the term emulsion isused because of 35 the fact that it is deemed to be particularly that ithe oil .globules or particles and obviously screw threaded the lowerclosure 66 jacket. The forward terbeen cast with the ings so that theinterior descriptive in thisconnection. Inreality, however, the emulsionlis only temporary but 5 for all practical: purposesit is as permanentas need be inasmuch as theprsssure onthe'emu-lsicn will bemaintainedthrough v the oil ducts andi'glands of the"system-so "Willbeprevented: from coagulation.

In -:the 1 preferred form the 1 lubricant is deposited in the casing 10through anopen- '1 ing which i's'formed in the" member 34 and isnormally closed bya plug 71. 1 modification illustratedin Fig. 3 theopening. through 4 which the lubricant is poured into the casing 10isformed in the upper 8 portion of an='elbow'72 on the pipe 28 and isclosed by' aplug 73= similar to the mcmher 71. T-his modified "structurereduces somewhat the cost of manufacture and has been found to be highlydesirable insome instances. A further modification disclosed in Fig. 3'consists in casting the-valve casing- 529, mixingchamber 37, inletnozzle 68 and outlet pipe ('4' integrally-and in providing a "detachablecap 75 which is 9 011a downwardly extending boss 76 formed on the lowerportion of the valve casing and equipped with anoil duct communicantwith the valve seat. The cap 75=isplaced in position and removed through9 an opening formed in a wall of the chamber, as is common in fittingsof this nature, this opening being closed by a plug, cap or otherWell-known means. In manufacturing the lubricator of this invention ithas been found "desirable to provide a set of these removable caps 75making the individual caps'of the set with oil bores or ducts of variousdiameters so that the user may provide for the issuance of'the lubricantinto the mixing chamber in large or small drops as conditions maydemand.

In the modified form illustrated inliig. 4 the horizontal portion of thepipe 28 has valve casing 37" and 1 steam inlet pipe (58". In themodification. of Fig. i also there has been provided a sight barrel asillustrated particularly in. Fig. Upon reference to this figure it willbe observed that a pair of externally threaded bosses 77 and 78 havebeen formed at diametrically opposed points in the casing 37". The openends of these bosses 77 78 are sealed by glass plates indicated at 79and 80. A packing gasket 81 is interposed between these glass plates andthe adjacent terminal of the bosses '7? and 78 for the obvious purposeof preventing" leakage from the mixing chamber. In holding the. glasses79 and in assembled position a pair of 1 threaded caps 82 and 83 areemployed. These caps are formed with central openof the mixing throughthe glass 1 chamber is open to view, plates 79 and 80.

&

A drain cock indicated at 84 is of course provided for the lubricantreservoir container so that the entire system may be bled whennecessary.

In reduction to practice, I have found that the form of my invention,illustrated in the drawings and referred to in the above description, asthe preferred embodiment, is the most efficient and practical; yetrealizing that the conditions concurrent with the adoption of my devicewill necessarily vary, I desire to emphasize the fact that various minorchanges in details of construction, proportion and arrangement of partsmay be resorted to, when required, without sacrificing any of theadvantages of my invcntion, as defined in the appended claims.

Having thus described the invention what is claimed as new -isf 1. In adisplacement lubricator, a reservoir for the lubricant, :a steam jacketsurrounding the reservoir, afvalved connection between the lower portion-of the steam jacket and the lower end of the'reservoir, and a mixingchamber having connection with the upper portions of the reservoir andsteam jacket.

2. In a displacement lubrieator, a reservoir for the lubricant, a steamjacket surrounding the reservoir, a valved connection between the lowerportion of the steam jacket and the lower end of the reservoir, a mixingchamber, a nozzle connection between the mixing chamber and the steamjacket, and a connection between the upper portion of the reservoir andthe mixing chamber for supplying the lubricant to the mixing chamber atan angle to the jet of steam.

3. In a displacement lubricator, a reservoir for the lubricant, a steamjacket surrounding the reservoir, a valved connection between the lowerportion of the steam jacket and the lower end of the reservoir,

a mixing chamber, a nozzle connection be-.

tween the mixing chamber and the steam jacket, and a valved connectionbetween the upper portion of the reservoir and the mixmg chamber forsupplying the lubricant to the mixing chamber in regulated quantity atan angle to the jet of steam.

4. In a device of the character described, a lubricant reservoir, amixing chamber, a steam jacket for the reservoir, a nozzle conductingsteam from the steam jacket to the mixing chamber, a lubricantcontrolling valve carried by the mixin chamber, and means for conductinglubricant from the reservoir to the valve, said valve .being adapted tointroduce the lubricant into the mixing chamber at a point above thelevel of the line of entrance of the steam.

5. In a device of the character described, a lubricant reservoir, asteam jacket, a mixing chamber, a nozzle conducting steam from the steamjacket to the mixing chamber,a lubricant controlling valve carried bythe mixing chamber, and a nozzle carried by the valve and projectinginto the mixing chamber for introducing the lubricant above the level ofthe line of entrance of the steam and at an angle thereto, and means forcon; ducting lubricant from the reservoir to the valve.

6. In a device of the character described, a lubricating reservoir, asteam jacket for the reservoir, a mixing chamber, a nozzle conductingsteam from the steam jacket to the mixing chamber, a pipe conductinglubricant from the reservoir to the mixing chamber, and a controllingvalve interposed inthe pipe, said valve including a casing mounted onthe mixing cha1nber, a nozzle carried by the casing and projecting intothe mixing chamber, an exteriorly operable valve rod adapted to seat inthe bore of the nozzle, and means for holding the valve rod in adjustedposition.

7. In a device of the character described, a lubricant reservoir, asteam jacket for the reservoir, a mixing chamber, a nozzle conductingsteam from the jacket to the mixing chamber, a pipe conducting lubricantfrom the reservoir to the mixing chamber,

and a controlling valve interposed in the pipe, said valve including avalve casing llUXlD tL nozzle 310 ectin into the mixin b #3 D chamber,-avalve rod, means for normally bore of the nozzle, and cxtcriorlyoperable means for manipulating the valve rod.

8. In a device of the character described, a lubricant reservoir, asteam jacket for the reservoir, a mixing chamber, a nozzle forconducting steam from the steam jacket into the mixing chamber, a pipeconducting lubricant from the reservoir to the mixing chamber, a nozzlecommunicating with the pipe and leading into the mixing chamber, and avalve for controlling the passage of lubricant through thelastunentioncd nozzle whereby the proportions of steam and lubricant ofthe mixture formedin said mixing chamber may be varied.

In testimony whereof I aflix my signature in presence of two witnesses.

HENRY A. DUC. [13.8.]. Witnesses:

R. L. LINDSEY, T. E. CAnnme'roN.

holding the valve in closed position in the

